Oat Milk Frap Reaction - Starbucks, San Jacinto California

1211 North State Street, San Jacinto, 92583 California, United States

I had a grande caramel ribbon crunch frap and had it made with oat milk and about half an hour after i was pooping out straight stomach acid. sorry i know that's tmi but its true. I had it twice earlier this week too and the same thing happened both times but i didn't substitute the milk. I thought maybe it was the milk but ive been drinking milk at home then thought it was the sugar and had ice cream and i was fine. So im not sure whats going on but i dont think Ill be able to drink there anymore unfortunately :( | Symptoms: Nausea, Diarrhea